Convertible trailer



FIG. 1 is a top perspective view of a convertible trailer showing my new design;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a top perspective view when the sides are converted to ramps; and,

FIG. 4 is an enlalrged perspective view of a corner of the trailer. 

I claim the ornamental design for a convertible trailer, as shown and described. 